PCF85 datasheet(14/24 Pages) ICST

Part #	PCF85

Description	PCF85xxC-2 family 256 to 1024 쨈 8-bit CMOS EEPROMs with I2C-bus interface

PDF	24 Pages

Scroll/Zoom	100%

Manufacturer	ICST [Integrated Circuit Systems]

Direct Link	http://www.icst.com

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14 / 24 page

1997 Feb 13

Philips Semiconductors

Product speciﬁcation

256 to 1024

× 8-bit CMOS EEPROMs with

I2C-bus interface

PCF85xxC-2 family

12 WRITE CYCLE LIMITS

Selection of the chip address is achieved by connecting the A0, A1 and A2 inputs to either VSS or VDD.

13 EXTERNAL CLOCK TIMING

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

E/W cycle timing

tE/W

E/W cycle time

internal oscillator

−

external clock

−

Endurance

NE/W

E/W cycle per byte

Tamb = −40 to +85 °C

100000

−−

cycles

Tamb =22 °C

−

1000000

−

cycles

Fig.11 One byte E/W cycle.

handbook, full pagewidth

t HIGH

LOW

STOP

257

PTC

SDA

SCL

MBA697

Fig.12 n bytes E/W cycle (n=2to7).

handbook, full pagewidth

t HIGH

LOW

STOP

PTC

SDA

SCL

MBA698

n x 256 + 1

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